Machinery for forming barrels.



.LMUROTH.

MACHINERY FOR FORMING BARRELS. APPLIOATION FILED SEPT. 16, 1910. RENEWED M1126, 1912.

1,039,887, Patented Oct. 1, 1912.

5 SHEETSSHBET 1.

L. BAUROTH. MACHINERY FOR FORMING BARRELS. APPLICATION FILED SEPT. 16, 1910. RENEWED JAN. 6, 1912.

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Patented 001:. 1, 1912.

Q SHEETS-SHEET 3.

java/725M L. BAUROTH.

MACHINERY FOR FORMING BARRELS.

' APPLIOATION FILED SEPT. 16, 1910. RENEWED JAN. 6, 19 12. 1,039,887.

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L. BAUROTH. MACHINERY FOR FORMING BARRELS. APPLICATION FILED SBPT. 16; 1910. RENEWED JAN. 6, 1912.

1,039,887; Patented 001;. 1, 1912.

5 SHEETS-SHEET 4.

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MACHINERY FOR rolmme BARBELS. APPLICATION FILED SEPT. 16, 1910. RENEWED JAN. 6, 1912.

6 SHEETS-SHEET 6.

\ J6 I 6Z2 J47 J5 J5 Wifieajaa I Jzwezflfir WSWW t/wsk fizgaw UNITED STATES" PATENT OFFICE.

LEONHABD BAUROTH, 0F TOLEDO, OHIO, ASSIGNOR T0 CHARLES H. WAOKER, OI

' CHICAGO, ILLINOIS.

Specification or mm. rum.

Application flied September 18, 1910, Serial Io. 582,381. Renewed January 6, 191}. Serial Io. 809,884.

To all whom it may concern:

Be it known that I, Li-ionulmo Bnuno'rn a citizen of the United States, residing at 7 Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Machinery for Forming Barrels, of which the following isa spec e My invention' relates tofthe art'ti making metallic barrels Ofbllfli. class in whichthe annular portion including the-bil is formed g g. iment of my invention is shown but it go willbe apparent from the'dctaile'd description that modifications may bemade In a number of respects without departing the scope thereof."

'Of the various views includedin the illus- -25 tration Figure 111's a side elevation of my complete machine; Fig. 2 is a plan view; Fig. 3 is acentral section. through a part of the machine on the line 3 -3 of. Fi 2:, showing certain parts in elevation; Fig. 4

position; Fig. 5 is a central vertical section of the right hand end of the machine on;

the line 5--5 of Fig. 2 showing oertain pa-rt's in elevation;.'Fig. 6 is'a vertical section on the line 6-43 of. Fig. 5; Fig; 7 is a View. in end elevation; Figs. 8 and 9 are vertical sect-i and v11 are details. I I

Referring more particularly to Figs. 1 and 2'the base of the machine is seen to consist of longitudinal extending I-beams 12, 12; which are connec-ted by a series of cross beams 13 flanged at their ends and 141 At eacheiidof the base is mounted a standard 15 consisting of a cast iron web 16- surrounded byla st-rengthening flange 17. The standards'fare circular in form but provided with rectangularofisets 18 forming is a similar view of the parts in a difierent al views on the lines 8- 8 and 9.-9' respectively and Figs. 19

connected to the longitudinal beams by bolts feet which rest upon and are secured to'the base plate in any suitable manner as bolts 19, see Fig. .7. Betweenthe end standards extend crossbraces or rods '20 which was are received in perforated bosses-21 formed on. the webs ldof the end standards and provided with collars 22 and nuts 23 between whi'ch' the bosses 21 are clamped. I have found the frame thus far described a desirable one for theipurpose but obviously other constructions might be adopted so long as they provided the. requisite strength and rigidity. The hollow diein which the cylindrical sections are expanded consists of a casting 24 provided with feet or standards 25 and strengthening'webs 26, the feet be- .ing flanged as at 27 to rest upon the upper surface of the longitudinal beams 12 to Y which they are bolted at 28. The-die castin 'has a longitudinal bore which is cylindrica l at each end 29, see Figs. 3 and 4,.and barrel shaped in the intermediate sectionas at 30.

The intermediate section is provided with a suitable number of air'holes 31' to permit [the escape of air trapped between the cylindrical blank and the bulge of the die andthe latter is further provided at about its center with a shallow-groove 3,0when it is desired to introduce a strengthening rib within the barrel. The intermediate sectionhowevei', is divided longitudinally along a horizontal plane into halves the lower of which is integral withthe end sections and the upper 31 hinged'there'to as at 32, see

Figs. 2 and 6, for the purpose of permitting the ready insertion of the cylindrical blanks and the removal of the same after they have *been expanded. The standards of the main casting are provided. with perforations 33 and the pivoted upper section with perfo-' med-egr334, the perforations in two parts registering for the reception ofa hinge bolt 35 about which the hinged member turns.

Onthe edge of the upper member 31 oposite thehinges are horizontally extending ugs 36 which. are engaged when the die is closed bv' an eccentric bolt or shaft 37 carhinged section of the die may be released PatentedOct. 1, 1912.

l ;I. l soprovide aslnghi upon the hinged section'ofthe die which is perforated for the the endsof the laterally. movable members meet and as the supports continue to approach, the sets of intermediate rmembers of the two heads mutually force each other outward on their link connection and the reception of a cable 46- or other means for 70 conveniently raising the latter. outer' diemembers slide with relation to the The means for expanding the cylindrical intermediate members and separate to acblanks consists of two similar eXpansi-ble 'commodate the outward movementof the heads whiehare ,movabletowardand from latter. When the expansion has been comeach other within the hollow die and are pleted the supporting members are in con- 7 carried by slides47, 47 reciprocating within tact at their ends along the central plane the cylindrical ends 29, 29 of the die casting. of the die and both the die members 54 and Eachof the slides 47 is connected to a screw the intermediate members 55 are in contact 48,48 by which it'isreciprocated and which Wlth the inner surface of' the barrel blank,

in turn is fed-by-meehanism' to be described the lntennediate members however engag'ng so later on The inner end" of each screw is 1t only 'along a comparatively narrow strip. connected to its slide by a'redueed neck '48 It'Wlll be noted-that the expanding sectlons and a head 48 the former fitting within a are tapered longitudinally to correspohd to central bore in the slide and the latter rethe interior contour of the die chamber.

ceived within an enlarged cavity 47, within The operating screws 48, -4 8 referred to 35 the slide. For the purpose (if-assembling above extend through guiding bores pfl each slide is formed in halves" separated formed in the end standards forthis purpose from each other along a diametrical plane and the key 60 sliding in a key-way ".61 in and-J secured together by bolts '47? Each ex-- each screw serves to prevent rotation therepandinghead consists of a central portion ofwhile permitting reci 10Cat-1OI1. Motion 90 I or support 49 and a number of lateris lmpartedtothe screw rom a' power-shaft ally movable sections and the support 49 62 ]ournaled 1n the end standardat 62, and in is provided with a stem 50 and-a flange the d1e"'ctst 1ngat 6 2. and drivienby oppo- 51, the former extending within a bore sitely rotating drivlng pulleys 63, 64. The

52 in the sliding head and the latter power shaft carrlesat opposite ends pinions 95 bolted thereto as at 53. With this construcv g g gears 7, 68 riving the tion the expanding head is firm ly secured respective screw shafts 48,48. Each gear is to the correspondin slide and yet it is provlded'with a 'bushing'69 preferably of readily removable erefrom: 'Each ex bronze keyed thereto and threaded to engage pandinghead consists of a'cent-ral support, the correspondingscreiv shaft. The bushing 100 a plurality of outer die members 54 which engage the blank and a plurality of intermediate, die 'nembers 55 which directly support the outer die members. The central support is a prism in the present instance hexagonal in cross section, and to each of its faces is linked an intermediate member by parallel motion links 56 shown as three in number. The support-and interis secured against'longitudinal movement by a divided collar 70 which is internally grooved andembraces a flange 71 on the bushing and a corresponding a flange 72 formed integral with the adjacent standard 15. A suitable clutch 73, see Fig. 2, of any approved construction serves to connect either of the driving pulleys 63, ,64with the power shaft according to the direction in which it 45 mediate members are suitably recessed to is'to be driven and a handlever 74 pivoted accommodate the links when theintermediat 91 engages a. pin 76 to shift the clutch ate members are contact with the support, in the one direction or the other but there Land said members are substantially hexagois further provided automatic means for nal prisms so. shapedthat-when-the expandshiftingtheelntch"when the expanderheads 50 ing head is contracted they form a practireach their extremefipositionslu For this Z cally continuous body around the central purpose"'orie'=of the screws, that shown at v supporfi but their adjacent outer faces lie in the rightbfFigfE, is longitudinally grooved planes which together form rentrant angles at 7 7 see'F-ig. 5, and a'rack'78 is-mounted in as. at,, 57 andvvvithin these angles rest and the grove. bracket 79 attached to the 55,sliole the outer die members 54, the members outside of the end standard carries .a small 12 I V ,,,.of the tw o sets being connected together by gear 80 which meshes with the;raek'.78zw As a ltongue and groove connection 58 which ,shbwninFigslOand l1,this,last-Inentioned may of anyordill l w .01 desired form, the *gear is provide'd with adjustable studs 81, tongues" ,faIid i grooves hovifver extendiiig' '82 mounted in a. dove-tailed.-oirculan 'groove transversely of the faces of the members; '83 on the face of the'gear wheeL- The studs 12 A s.-clearly shown in Fig. 4, when the exmaybe provided with. rollers p84 though 1; pending heads are contracted the members this is not essential. Upon the bracket 79 is ,5, ofthe two movable'series project beyondthe a'lsomounted a lever 85 which is connected f end:.ofigthe eentral members. WVhen, howat-its lower end by a 'linka86 to a. second fi ever, theexpanding heads are thrust inward lever 87 mounted upon a second bracket 88 secured to the end standard. The other end of the latter lever is connected by a link 89 extending through the end standard to an arm 90 secured to the lower end of the shaft 91' which carries the hand lever. It will be apparent that when one of the studs 81, 82 on the small gear wheel engages the lever 85 the latter through the intermediate connections which have just been 'e escribed, will shift the clutch on the power shaft and by suitably adjusting the studs the points at which the clutch will be shifted can be made to correspond to the extreme inner and outer positions of the expanding heads.

The operation of the machine is obvious. To form a barrel the die is opened by turning the eccentric shaft 37, droppin down the links away from the lugs 36 an swinging back the uppler dieisection 31. A cylindrical blank in w ich, if a strengthen .ing rib is desired, a cylindrical band has been placed, as shown'at 92, Fig 4, is inserted and the diethen closed. he power shaft having been set in motion the expander heads arefed inwardly butremain in their contracted condition until they come in contact. As soon, however, as the intermediate sections on the opposite expander heads are pressed against each other they are forced ackward and outward b reason of the link connections, the outer ie sections at the same time being borne outward by the inter-- mediate sections with which they engage. The action is continued until the central supports. abut each other at which time the links-will have carried the die members to their extreme .outer positions in which they press the blank into contact with the hollow die member. The direction of rotation of panding heads are withdrawn and as this occurs they are likewise colla sed by reason of the tapering section of t e hollow die. After, the expanders havebeen completely withdrawn from the barrel body within the cylindrical bores the hollow] die is o ned and the shaped barrel body remove It will be obvious as stated above that numerous chan es will suggest themselves as possible to t e mechanics skilled in this and analogous arts which will yet be within the scope of my invention. The latter is defined however in the following claims.

What I claim is:

1. In a device of the class described a hbllow stationary die member, and an expanding head comprising a central support, and die members each connected thereto by a pair of pivoted links and movable toward 80 and away from the central support.

2. In a device of the class described, a

. hollow stationary die member,-and an expanding head consisting of a central support, a series of die members each connected 65 thereto by a pair of pivoted links and exseries of outer die members wholly mounted the'power shaft beingthen reversed the ex-.

adapte to be expanded by contact with each tending beyond the central support when in collapsed position and adapted to be swung ouctlward by pressure upon-their prO ectmg on s. y

3. In a device of the'class described, a l hollow stationary die member, an expanding head comprising a central support, a series of intermediate die members mounted upon and movable toward and awa from the same and an outer series of ie members 1 surrounding and mounted upon the intermediate members and movable relatively thereto. 4. In a device of the class described, a hollow stationary die member and an ex? vpending head consisting of a central sup? port, a series of intermediate die members movable toward and away from the same, a

upon the intermediate members and ada ted 5 to slide with relation thereto, the outer aces of both the outer and intermediate members shaped to conform to the interior of the hollow die member. y

5. In a device of the class described, the combination of a hollow stationary die member and an expanding head consisting of a central support and a series of die members linked thereto and projecting beyond the central support in collapsed condition, a series of outer die members mounted upon the intermediate members and movable relatively thereto, the outer faces of both the outer and intermediate members of a she e to conform to the interior of the hollowie 9- member.

6. In a device of the class described, the combination of a hollow die member and an expanding head consisting of a central support, a series of intermediate die members mounted upon the same and connectedthereto so as to be movable toward and away fromthe central support, and an outerseries of die members connected to the intermediate series by transverse tongue and. groove connection. i I

7. In a device of the class described, a hollow die member, a pair of expanding heads movable toward and away from each other within the hollow die member, each head consisting of a central support, and a series of die members connected thereto and projecting beyond the central support when 1n colla sed condition, the expanding heads no other.

8. In a device of the class described, a hollow die having a barrel form in its mid section, and cylindrical end sections con-z stituting guides, slides in the guides each carrying a sectional expander head which heads are adapted to expand when forced against each other, and means for reciprocatin the slides.

a device of the class described,

"I 1 "be ow xtending heads movable to"- f "wardand-froin'the 'cnter'ofthe die, screws for moving the heads attached thereto, gears haying threads engaging the screws for re-- ciprocatingthesame, a" power shaft with ffpinionsmeshing'fwith-the gears, a'clutch for reversely' moving the power shaft, and

means' driven by one of thescrew shafts 'for automatically reversing the clutch. T10. In a deviceofthe class'described, a hollow die, expanding heads movable toward and from the center of 'the-die,"screws' tween the lever and clutch for 'reverslng, the

latter. 1-1. I n a device of the class described, the 2 5, combination of a hollow die, and a pair of heads movable toward and away from each u v othen and having expanding die members which are ofgreater width at" their outer "midwa of'its'length.

' I 12. ,n a device oflthe classdescribed', the

:: 1 ends in order to initially contact. the blank.

combinationbf a'hollow die, and a pair of headsinovable toward and awav from each Tether; andxhaving expanding die members '35 which are of greater width at their outer ends and arev inclined from such ends inwardly toward their, central longitudinal .1. xi in order to initiallycontact the blank i midway ofitslength'and to apply pressure progressively toward the opposite ends of 'theblank I 13. In a device of the class described, the combination of a hollow die, expanding heads coop'erating,w ith the die, plungers connected with the heads for moving them toward andiaway from each other, and mechanism for operating theplungers in unisonpij'n cluding means for automatically reversing the movement of the plungers atter the operation of the heads.

14. Ina device of the class described, the combination of a hollow die, expanding heads coiiperating with the die, plungers connect'edwith the'heads for moving them toward and away from each other, and

mechanism for operating the plungers in unison, including means driven by one of the plungers for automatically reversing the direction of their movement after the operation of the heads.

15. The combinationof a casing having a die portion and a slideway, an expander head, a plunger on which such head is mounted and which includes a slide to which the head is secured and which is movable in the slideway, and a plunger rod secured to the slide.

16. The combination of a casing having a die portion and a slideway, an expander "head, a plunger on which such head is mountedand whichflincludes a slide to which the head is secured and'which is movable in the slideway, and a plunger rod secured to the slide, said slide being made in detachable sections.

17. The combination of a hollow die, an expander head including a central support, a slide to which such support is secured, and a plunger rod connected with the slide.

18. The combination of a hollow die, an

expander head'including a central support having a stem 50 and flange 5l,*and a sectional slide. receiving said stem- 'and flange, and a plunger rod secured to the slide.

19. The combination of a hollow die, an

expander head, a sectional slide to which the head is attached, and a plunger rod 48 having a stem 48 and head 48 received by said slide.' I

LEONHARD BAUROTH.

Witnesses HENnY STAUTZENBAGH, CHAS. M. HAAG.

W I NM, I; J m vv we; Copies oithis patent may be obtained for five cents each, by addressing the Commissioner of l atents,

Washington, I). 0. 

